Critical Thinking questions (Multiple Choice) As a customer of JonezMusic, you can place as many orders as you like with their online music store. However, the reverse is not true; a particular order cannot be placed jointly by two customers. This is an example of ____.
A) cardinality
B) an entity relationship
C) a many-to-many relationship
D) a one-to-one relationship

Question

Quizplus · Accepted Answer

Cardinality refers to the numerical relationship between two entities, specifying the number of instances of one entity that can be associated with each instance of another entity. In this case, the relationship between customers and orders is such that one customer can place many orders, but each order is linked to only one customer, illustrating the concept of cardinality in database relationships.

Critical Thinking Questions (Multiple Choice) as a Customer of JonezMusic